Abstract
Surge phenomena in fluid lines often produce vibrations and noises, or even result in system breakdown. In order to absorb the surge waves, accumulators are conventionally employed in oil hydraulic circuits. In the present paper an attempt to utilize branch pipes for decreasing pressure surge is experimentally tested. The idea depends on the fact that a pipe which branches from the main line and has a dead end dissipates transient waves without affecting the steady-state flow. It has turned out that although branch pipes cannot completely eliminate surges, they are from the practical point of view useful enough to diminish surge pressures, having their own advantages over the conventional accumulator in several aspects.
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